C#開發(fā)的矢量圖形繪制（轉(zhuǎn)）

羊玉wngbx 2021-05-17

展開全文

using System;
using System.Collections.Generic;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.IO;                         //streamer io
using System.Runtime.Serialization;     // io
using System.Runtime.Serialization.Formatters.Binary; // io
using System.Drawing.Printing;

namespace EmrKB
{
    public partial class vectShapes : UserControl
    {
        private string Status;
        public string Option;
        private string redimStatus = "";

        private string msg = "";
        [CategoryAttribute("Debug"), DescriptionAttribute("ShowDebugInfo")]
        public bool ShowDebug { get; set; }

        private int startX;
        private int startY;
        private Shapes s;

        private float _Zoom = 1;
        private bool _A4 = true;

        private int _dx = 0;
        private int _dy = 0;
        private int startDX = 0;
        private int startDY = 0;
        private int truestartX = 0;
        private int truestartY = 0;

        //畫筆Pen工具 START
        private ArrayList VisPenPointList;
        private ArrayList PenPointList;
        private int PenPrecX;
        private int PenPrecY;
        //畫筆Pen工具 END

        private Bitmap offScreenBmp;
        private Bitmap offScreenBackBmp;

        // Grid
        public int _gridSize = 0;
        public bool fit2grid = true;

        //Graphic
        private System.Drawing.Drawing2D.CompositingQuality _CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.Default;
        private System.Drawing.Text.TextRenderingHint _TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
        private System.Drawing.Drawing2D.SmoothingMode _SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
        private System.Drawing.Drawing2D.InterpolationMode _InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Default;

        // Drawing Rect
        private bool MouseSx;
        private int tempX;
        private int tempY;

        // 預(yù)覽 & 打印
        private Anteprima AnteprimaFrm;

        // 編輯框
        private richForm2 editorFrm;

        public RichTextBox r;

        public Color CreationPenColor;
        public float CreationPenWidth;
        public Color CreationFillColor;
        public bool CreationFilled;

        //public PropertyGrid propGrid;

        //EVENT
        public event OptionChanged optionChanged;
        public event ObjectSelected objectSelected;

        //Image1.tif
        Cursor AddPointCur = getCursor("newPoint3.cur", Cursors.Cross);
        Cursor DelPointCur = getCursor("delPoint3.cur", Cursors.Default);
        // Gets he *.cur file in a.
        public static Cursor getCursor(string a, Cursor defCur)
        {
            try
            {
                return new Cursor(a);
            }
            catch
            {
                return defCur;
            }
        }

        public vectShapes()
        {
            InitializeComponent();
            myInit();

            //from Ilango.M
            this.SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true); // added line
        }

        //Graphic
        [CategoryAttribute("Graphics"), DescriptionAttribute("Interp.Mode")]
        public System.Drawing.Drawing2D.InterpolationMode InterpolationMode
        {
            get
            {
                return _InterpolationMode;
            }
            set
            {
                _InterpolationMode = value;
            }
        }

        [CategoryAttribute("Graphics"), DescriptionAttribute("Smooth.Mode")]
        public System.Drawing.Drawing2D.SmoothingMode SmoothingMode
        {
            get
            {
                return _SmoothingMode;
            }
            set
            {
                _SmoothingMode = value;
            }
        }

        [CategoryAttribute("Graphics"), DescriptionAttribute("Txt.Rend.Hint")]
        public System.Drawing.Text.TextRenderingHint TextRenderingHint
        {
            get
            {
                return _TextRenderingHint;
            }
            set
            {
                _TextRenderingHint = value;
            }
        }

        [CategoryAttribute("Graphics"), DescriptionAttribute("Comp.Quality")]
        public System.Drawing.Drawing2D.CompositingQuality CompositingQuality
        {
            get
            {
                return _CompositingQuality;
            }
            set
            {
                _CompositingQuality = value;
            }
        }

        [CategoryAttribute(" "), DescriptionAttribute("Canvas")]
        public string ObjectType
        {
            get
            {
                return "Canvas";
            }
        }

        [CategoryAttribute(" "), DescriptionAttribute("Grid Size")]
        public int gridSize
        {
            get
            {
                return _gridSize;
            }
            set
            {
                if (value >= 0)
                {
                    _gridSize = value;
                }
                if (_gridSize > 0)
                {
                    this.dx = _gridSize * (int)(this.dx / _gridSize);
                    this.dy = _gridSize * (int)(this.dy / _gridSize);
                }
                this.redraw(true);
            }
        }
[CategoryAttribute(" "), DescriptionAttribute("Canvas Zoom")]
        public float Zoom
        {
            get
            {
                return _Zoom;
            }
            set
            {
                if (value > 0)
                {
                    _Zoom = value;
                    this.redraw(true);
                }
                else
                {
                    _Zoom = 1;
                    this.redraw(true);
                }
            }
        }

        [CategoryAttribute(" "), DescriptionAttribute("Show A4")]
        public bool A4
        {
            get
            {
                return _A4;
            }
            set
            {
                _A4 = value;
            }
        }

        [CategoryAttribute(" "), DescriptionAttribute("Canvas OriginX")]
        public int dx
        {
            get
            {
                return _dx;
            }
            set
            {
                _dx = value;
            }
        }

        [CategoryAttribute(" "), DescriptionAttribute("Canvas OriginY")]
        public int dy
        {
            get
            {
                return _dy;
            }
            set
            {
                _dy = value;
            }
        }

        public void zoomIn()
        {
            this.Zoom = (int)(this.Zoom + 1);
        }

        public void zoomOut()
        {
            if (this.Zoom > 1)
            {
                this.Zoom = (int)(this.Zoom - 1);
            }
        }

        public void mergePolygons()
        {
            s.mergePolygons();
            redraw(true);
        }
        public void delPoints()
        {
            this.s.delPoint();
            redraw(true);
        }

        public void linkNodes()
        {
            this.s.linkNodes();
            redraw(true);
        }

        public void delNodes()
        {
            this.s.delNodes();
            redraw(true);
        }

        public void extPoints()
        {
            this.s.extPoints();
            redraw(true);
        }

        public void XMirror()
        {
            this.s.XMirror();
            redraw(true);
        }
        public void YMirror()
        {
            this.s.YMirror();
            redraw(true);
        }
        public void Mirror()
        {
            this.s.Mirror();
            redraw(true);
        }

        private void myInit()
        {
            //Status = "";
            changeStatus("");
            Option = "select";

            Graphics g = this.CreateGraphics();

            //retrive printer resolution
            PrintDocument pd = new PrintDocument();
            //MessageBox.Show( pd.PrinterSettings.DefaultPageSettings.PrinterResolution.X.ToString() );
            //MessageBox.Show(pd.PrinterSettings.DefaultPageSettings.PrinterResolution.Y.ToString() );
            Graphics g_pr = pd.PrinterSettings.CreateMeasurementGraphics();
            SizeF sizef;
            float x_pr, y_pr = 0;

            sizef = g_pr.MeasureString("YourStringHere", Font);
            x_pr = sizef.Width;
            y_pr = sizef.Height;
            //y_pr = Font.Height;

            float x_vi, y_vi = 0;

            sizef = g.MeasureString("YourStringHere", Font);
            x_vi = sizef.Width;
            y_vi = sizef.Height;

            //s = new Shapes((pd.PrinterSettings.DefaultPageSettings.PrinterResolution.X / g.DpiX), pd.PrinterSettings.DefaultPageSettings.PrinterResolution.Y);
            s = new Shapes(g.DpiX * (x_pr / x_vi), g.DpiY * (y_pr / y_vi));

            //            undoB = new UndoBuffer(5);
            g.Dispose();

            editorFrm = new richForm2();
            this.r = editorFrm.richTextBox1;

            CreationPenColor = Color.Black;
            CreationPenWidth = 1f;
            CreationFillColor = Color.Black;
            CreationFilled = false;

            this.optionChanged += new OptionChanged(FakeOptionChange);
            this.objectSelected += new ObjectSelected(FakeObjectSelected);

            offScreenBackBmp = new Bitmap(this.Width, this.Height);
            offScreenBmp = new Bitmap(this.Width, this.Height);
        }

        private void FakeOptionChange(object sender, OptionEventArgs e)
        { }

        private void FakeObjectSelected(object sender, PropertyEventArgs e)
        { }

        private void changeStatus(string s)
        {
            this.Status = s;
        }

        private void changeOption(string s)
        {
            this.Option = s;
            // Notify Option change to "listening object" (i.e: toolBbox)
            OptionEventArgs e = new OptionEventArgs(this.Option);
            optionChanged(this, e);// raise event
        }

        public void anteprimaStampa(float zoom)
        {
            InitializePrintPreviewControl(zoom);
        }
#region Print & Preview

        public void Stampa()
        {
            this.s.deSelect();

            AnteprimaFrm = new Anteprima();
            AnteprimaFrm.PrintPreviewControl1.Name = "PrintPreviewControl1";
            AnteprimaFrm.PrintPreviewControl1.Document = AnteprimaFrm.docToPrint;

            AnteprimaFrm.PrintPreviewControl1.Zoom = 1;

            AnteprimaFrm.PrintPreviewControl1.Document.DocumentName = "Anteprima";

            AnteprimaFrm.PrintPreviewControl1.UseAntiAlias = true;

            AnteprimaFrm.docToPrint.PrintPage +=
                new System.Drawing.Printing.PrintPageEventHandler(
                docToPrint_PrintPage);

            // Per stampare
            AnteprimaFrm.docToPrint.Print();

            AnteprimaFrm.Dispose();

        }

        private void InitializePrintPreviewControl(float zoom)
        {
            this.s.deSelect();

            AnteprimaFrm = new Anteprima();
            // Construct the PrintPreviewControl.
            //AnteprimaFrm.PrintPreviewControl1 = new PrintPreviewControl();

            // Set location, name, and dock style for PrintPreviewControl1.
            //AnteprimaFrm.PrintPreviewControl1.Location = new Point(88, 80);
            AnteprimaFrm.PrintPreviewControl1.Name = "Preview";
            //AnteprimaFrm.PrintPreviewControl1.Dock = DockStyle.Fill;

            // da testare??
            //AnteprimaFrm.PrintPreviewControl1.BackColor = this.BackColor;
            //AnteprimaFrm.PrintPreviewControl1.BackgroundImage = this.BackgroundImage;

            // Set the Document property to the PrintDocument
            // for which the PrintPage event has been handled.
            AnteprimaFrm.PrintPreviewControl1.Document = AnteprimaFrm.docToPrint;

            // Set the zoom to 25 percent.
            AnteprimaFrm.PrintPreviewControl1.Zoom = zoom;

            // Set the document name. This will show be displayed when
            // the document is loading into the control.
            AnteprimaFrm.PrintPreviewControl1.Document.DocumentName = "Preview";

            // Set the UseAntiAlias property to true so fonts are smoothed
            // by the operating system.
            AnteprimaFrm.PrintPreviewControl1.UseAntiAlias = true;

            // Add the control to the form.
            //AnteprimaFrm.Controls.Add(AnteprimaFrm.PrintPreviewControl1);

            // Associate the event-handling method with the
            // document's PrintPage event.
            AnteprimaFrm.docToPrint.PrintPage +=
                new System.Drawing.Printing.PrintPageEventHandler(
                docToPrint_PrintPage);

            // Per stampare
            //AnteprimaFrm.docToPrint.Print();
            AnteprimaFrm.ShowDialog();
        }

        // 預(yù)覽圖顯示在界面上
        // by handling the documents PrintPage event
        private void docToPrint_PrintPage(
            object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            // Insert code to render the page here.
            // This code will be called when the control is drawn.

            // The following code will render a simple
            // message on the document in the control.
            //string text = "In docToPrint_PrintPage method.";
            //System.Drawing.Font printFont =
            //    new Font("Arial", 35, FontStyle.Regular);
            // e.Graphics.DrawString(text, printFont,
            //      Brushes.Black, 10, 10);

            Graphics g = e.Graphics;

            //Do Double Buffering
            //Bitmap offScreenBmp;
            // Graphics offScreenDC;
            //offScreenBmp = new Bitmap(this.Width, this.Height);
            //
            //offScreenDC = Graphics.FromImage(offScreenBmp);

            //offScreenDC.Clear(this.BackColor);

            //background image
            //if ((this.loadImage) & (this.visibleImage))
            //    offScreenDC.DrawImage(this.loadImg, 0, 0);
            //

            //offScreenDC.SmoothingMode=SmoothingMode.AntiAlias;

            // test
            //MessageBox.Show("dipx : " + g.DpiX + " ; dipy : " + g.DpiY);

            //s.Draw(offScreenDC);
            if (this.BackgroundImage != null)
                g.DrawImage(this.BackgroundImage, 0, 0);

            //TEST !!!!!!!!!!!!!!!!!!!!!!!!!!!1
            //this.DrawMesure(g);

            s.Draw(g, 0, 0, 1);

            //if (this.MouseSx)
            //{
            //    System.Drawing.Pen myPen = new System.Drawing.Pen(System.Drawing.Color.Red);
            //    offScreenDC.DrawRectangle(myPen, new Rectangle(this.startX, this.startY, tmpX - this.startX, tmpY - this.startY));
            //    myPen.Dispose();
            //}

            //g.DrawImageUnscaled(offScreenBmp, 0, 0);

            g.Dispose();
        }

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C#開發(fā)的矢量圖形繪制（轉(zhuǎn)）